CONSOLIDATED STATEMENTS OF COMMON SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Shares	Capital Surplus, Paid In	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning balance (in shares) at Dec. 31, 2020		342,954,023
Beginning balance at Dec. 31, 2020	$ 14,063,566	$ 1,789,092	$ 8,015,663	$ 4,613,201	$ (76,411)	$ (277,979)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (Loss)/Income	1,228,046			1,228,046
Dividends on Common Stock	(828,337)			(828,337)
Dividends on Preferred Stock	(7,519)			(7,519)
Long-Term Incentive Plan Activity	3,537		3,537
Issuance of Treasury Shares (in shares)		986,656
Issuance of Treasury Shares	68,364		49,913			18,451
Issuance of Treasury Shares for Acquisition (in shares)		462,517
Issuance of Treasury Shares for Acquisition	38,051		29,401			8,650
Other Comprehensive Income, Net of Tax	34,136				34,136
Ending balance (in shares) at Dec. 31, 2021		344,403,196
Ending balance at Dec. 31, 2021	14,599,844	$ 1,789,092	8,098,514	5,005,391	(42,275)	(250,878)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (Loss)/Income	1,412,394			1,412,394
Dividends on Common Stock	(883,113)			(883,113)
Dividends on Preferred Stock	(7,519)			(7,519)
Issuance of Common Shares (in shares)		2,165,671
Issuance of Common Shares	199,905	$ 10,828	189,077
Long-Term Incentive Plan Activity	8,335		8,335
Issuance of Treasury Shares (in shares)		949,724
Issuance of Treasury Shares	71,172		53,822			17,350
Capital Stock Expense	(2,847)		(2,847)
Issuance of Treasury Shares for Acquisition (in shares)		925,264
Issuance of Treasury Shares for Acquisition	72,133		54,830			17,303
Other Comprehensive Income, Net of Tax	$ 2,854				2,854
Ending balance (in shares) at Dec. 31, 2022	348,443,855	348,443,855
Ending balance at Dec. 31, 2022	$ 15,473,158	$ 1,799,920	8,401,731	5,527,153	(39,421)	(216,225)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (Loss)/Income	(434,721)			(434,721)
Dividends on Common Stock	(942,398)			(942,398)
Dividends on Preferred Stock	(7,519)			(7,519)
Long-Term Incentive Plan Activity	1,375		1,375
Issuance of Treasury Shares (in shares)		1,096,411
Issuance of Treasury Shares	78,313		57,770			20,543
Other Comprehensive Income, Net of Tax	$ 5,684				5,684
Ending balance (in shares) at Dec. 31, 2023	349,540,266	349,540,266
Ending balance at Dec. 31, 2023	$ 14,173,892	$ 1,799,920	$ 8,460,876	$ 4,142,515	$ (33,737)	$ (195,682)